Porous α-Fe 2 O 3 nanorods supported on carbon nanotubes-graphene foam as superior anode for lithium ion batteries

By Minghua Chen, Jilei Liu, Dongliang Chao, Jin Wang, Jinghua Yin, Jianyi Lin, H. Fan, Zexiang Shen. 2014

229 citations recorded by the source corpus.

Abstract A novel flexible and lightweight Fe 2 O 3 -based lithium-ion battery anode has been developed by growing porous α-Fe 2 O 3 nanorods onto carbon nanotubes–graphene foam (CNT–GF). The CNT–GF 3D network provides a highly conductive, high surface areas and lightweight scaffold for the active Fe 2 O 3 nanorods. Such unique electrodes for lithium-ion battery exhibit an 80% initial columbic efficiency, high-rate capabilities, and >1000 mA h/g capacities at 200 mA/g up to 300 cycles without obvious fading. These properties can be attributed to the fast electrochemical reaction kinetics and electron transport rendered by the conductive 3D network. Our structural design protocol can be extended to many other nanostructured metal oxides or sulfides, and thus provides a new strategy for construction of high-performance electrodes for energy storage.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/79b9f81574be294fc9abcf78cf11bfcdec59d149